1992 Jeep Cherokee brakes work great but pedal dont return

See My Profile, Imma CJ kinda Guy.

Before you answer back, Recheck your fluid and look at the insides of your tires (ALL!) Look for BRAKE FLUID Centrifically thrown down the sides, also look for fluid anywhere on the ground!

Thats just a precaution!

I do not know your rig much at all, I do know the MECHANICALS of BRAKES. Not much about the ABS systems. But I do know the End Results of what actually stops you!

Some of these newer rigs have 1) DISC BRAKES on all wheels, 2) some are disc at the front and drum on the rear. 3) Really older stuff is DRUMS on every wheel.

I suspect you are 1) or 2)

I SUSPECT you either have 3 possibilities to what your symptoms are:

1) Bad Master Cylinder (last thing to check/ replace, of these 3)

2) Brake Shoes out of adjustment or self adjusters not working (Drum Brakes)

3) Air in the linesCould be anywhere, in the master cylinder, in the lines, or in the Calipers or wheel cylinders.

Do you/ can you/ are you capable of these repairs or adjustments? Tools? Assistance on your end?

I MAY BE ABLE TO HELP, if you are sorta AUTO Mechanical. But if you are unsure, I will not chance your life, with Misunderstanding of a CRITICAL REPAIR that can be avoided.

I am not a paid mechanic, nor paid here, I do MY, MY FAMILY'S and FRIEND'S auto work'

I am a Whiz with CJ 5s, CJ 7s, and Scramblers

You Turn

The Medic

With as much slop as you say you have in the pedal, I would think that even with a spring broke in the master cylinder (never seen it), that the Hydraulics of the system would keep your pedal full, or close to it.

It could possibly be fluid in the master cylinder, slipping around the "O" rings. But then your pedal would probably slowly sink while you are standing on the brakes.

Unless like you say, there is a Return Spring Issue in a Brake Drum. Calipers would not have a return spring.

Are you making any headway on him?

The Medic